This decrease in active cases comes despite the city recently reporting a few Covid clusters in educational institutions and star hotels.
While Chennai has been recording less than 400 cases continuously for almost a month now, officials said the recent spike is due to the clusters formed in the city's educational institutions.
In the last seven days, the city has recorded a negative case growth of 1.6 per cent, said officials.
Only Chennai and Coimbatore districts reported over 100 cases on the day, with Chennai recording 467 cases and Coimbatore 149.
Covid-19: Tamil Nadu reports 1,652 cases, 18 deaths; 2 patients discharged after long hospitalisation
Only three districts reported more than 100 cases. They are Chennai (492 cases), Chengalpattu (112 cases), and Coimbatore (170 cases).
According to data released by the city corporation on Sunday, in the last seven days Chennai has recorded a negative case growth of 3.7 per cent.
According to a statement, the CMRL has roped in Nimirvu Kalaiyagam, a folk art team, to conduct Parai performances at the Tirumangalam Metro Station from 10 am to 11:30 am today.
Tondiarpet and Teynampet Corporation zones become the first to have just one percent Covid-19 active cases
The doctors stressed that complete clinical recovery, which could even take a year, was more important than improvements seen in CT scans
According to the media bulletin issued by the Directorate of Public Health, Tamil Nadu tested 72,236 samples and 70,898 people on the day.
Since May, many instances of residents getting locked up inside their houses with no way to enter or exit were shared in social media.
Currently, 761 streets in Chennai have active positive cases and in this, there are only ten containment zones.
The study aims to prove the accuracy of CT Scan findings over RTPCR findings, giving room for early diagnosis and treatment.
A worrying trend hovers, as Chennai continues to record close to 1300 cases daily. Nine corporation zones have recorded a positive case growth.
Among the districts with high recovery, 89.3 per cent have recovered in Madurai, while 88 per cent have recovered in Chennai